Split type fireproof lock panel and fireproof lock

By separating the fireproof lock panel into an outer shell and clips, the surface treatment problem of the fireproof lock panel is solved, which improves corrosion resistance and mechanical strength, extends service life, and simplifies the production and maintenance process.

CN224591922UActive Publication Date: 2026-08-04JIANGSU WENZHONG LOCK IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU WENZHONG LOCK IND CO LTD
Filing Date
2025-06-24
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing fireproof lock panels have a complex one-piece structure, which makes it difficult to uniformly cover the surface, creating blind spots that affect the protective effect and make them susceptible to corrosion, reducing their mechanical properties and service life.

Method used

The fireproof lock panel is divided into two parts: an outer shell and a clip. The outer shell provides protection, while the clip performs the function. The outer shell and the clip are connected by bending, which simplifies the surface treatment process. Stainless steel is used to improve corrosion resistance.

Benefits of technology

It reduces production and maintenance costs, extends service life, improves product aesthetics and structural stability, simplifies the assembly process, and enhances sealing and protective performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224591922U_ABST
    Figure CN224591922U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of split type fireproof lock panel and fireproof lock, including shell and clamping piece. The edge of shell is bent to form edge covering, and adjacent edge covering is not connected each other. First bolt hole that is compatible with the shape of fireproof lock bolt is opened on shell, and first fixed hole is opened on the shell of the upper and lower sides of first bolt hole. Clamping piece is attached on the shell surrounded by edge covering, and the outer contour of clamping piece is compatible with shell, and the fixed connection of clamping piece and shell is realized by bending edge covering to one side of clamping piece. Second bolt hole and second fixed hole corresponding to first bolt hole and first fixed hole are respectively opened on clamping piece, and bolt guide piece is vertically installed on the upper and lower sides of second bolt hole. The utility model splits the traditional integrated fireproof lock panel into shell and clamping piece, which eliminates the process of complex surface treatment on clamping piece itself, reduces production cost and improves production efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of door lock components, specifically a split-type fireproof lock panel and a fireproof lock. Background Technology

[0002] In the field of building safety, fire-resistant locks, as key protective components, are widely used on various fire doors to effectively slow the spread of fire and protect lives. The fire-resistant lock panel, as an important part of the fire-resistant lock, not only serves a decorative purpose but also plays a crucial role in protecting the lock body, enhancing the fire resistance of the door, and ensuring precise positioning and guidance of the lock. Because fire-resistant lock panels are exposed to complex environments for extended periods, they are susceptible to the effects of moisture, oxygen, and other corrosive substances in the air, leading to oxidation and rust. This not only affects their appearance but can also reduce their mechanical properties, shorten their service life, and even cause lock malfunctions, posing safety hazards. Therefore, to improve the corrosion resistance of fire-resistant lock panels and extend their service life, their surfaces typically require anti-oxidation treatment, such as electroplating, spraying, oxidation treatment, or applying anti-corrosion coatings.

[0003] However, most existing fireproof lock panels adopt a one-piece structural design, which, while enhancing overall strength and ease of installation, also introduces new technical challenges. Due to their complex structure, often including grooves, bosses, holes, and deep cavities, these areas can easily become processing blind spots during surface treatment, resulting in uneven coverage of the coating or plating and affecting the protective effect. Therefore, effectively solving the surface treatment challenges posed by the complex structure of fireproof lock panels has become a pressing technical bottleneck that needs to be overcome. Utility Model Content

[0004] To address the issue of the difficulty in surface treatment of existing fireproof lock panels, this utility model provides a split fireproof lock panel and fireproof lock. The traditional one-piece fireproof lock panel is divided into two parts: an outer shell and a clip. The clip is used to realize the specific functions of the fireproof lock panel, while the outer shell provides a certain degree of protection for the clip. This design eliminates the need for complex surface treatment of the clip itself, reduces production costs, and improves production efficiency.

[0005] This utility model achieves the above-mentioned technical objectives through the following technical means.

[0006] A split-type fireproof lock panel includes a shell and a clip; the edge of the shell is bent to form a edging, and adjacent edgings are not connected to each other; the shell has a first latch hole adapted to the shape of the fireproof lock latch, and the shell has first fixing holes on the upper and lower sides of the first latch hole; the clip is attached to the shell surrounded by the edging, and the outer contour of the clip is adapted to the shell, and the clip is fixedly connected to the shell by bending the edging towards one side of the clip; the clip has a second latch hole and a second fixing hole corresponding to the first latch hole and the first fixing hole, and latch guide plates are vertically installed on the clips on the upper and lower sides of the second latch hole.

[0007] Furthermore, the number of the first and second locking tongue holes is not less than one, and the shape is one or more of the following: rectangular, circular, and "I" shaped.

[0008] Furthermore, the latch guide piece is formed by cutting its outer contour on the clip and bending it along one side of the first latch hole.

[0009] Furthermore, the first fixing hole is circular in shape, and the second fixing hole is circular or plum blossom-shaped to match the first fixing hole, and the diameter of the second fixing hole is not smaller than that of the first fixing hole.

[0010] Furthermore, the outer casing is made of stainless steel.

[0011] Furthermore, the outer casing around the first fixing hole is recessed towards the clamping piece, and the clamping piece around the second fixing hole is recessed towards the side away from the outer casing.

[0012] Furthermore, the distance from the first latch hole to its left and right sides of the edging, and the distance from the second latch hole to its left and right sides of the edging, are both greater than the height of the edging.

[0013] Furthermore, the thickness of the clip is 0.5–2 mm, and the thickness of the outer shell is 0.1–0.5 mm.

[0014] A fireproof lock comprising the split-type fireproof lock panel described in any of the above claims.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model separates the traditional one-piece fireproof lock panel structure into two parts: an outer shell and a clip. The outer shell provides a certain degree of protection for the clip, thus eliminating the need for complex surface treatment of the clip itself. Furthermore, during maintenance or replacement, only the damaged outer shell needs to be replaced, rather than the entire unit, significantly reducing maintenance costs and material waste.

[0017] 2. The outer shell of this utility model is made of stainless steel, which has excellent corrosion resistance, wear resistance and mechanical strength, and can effectively meet the usage requirements of various complex environments and extend the service life of the fireproof lock panel.

[0018] 3. In this utility model, the outer shell and the clamping piece are fixedly connected by bending the outer frame, which eliminates the need for additional fasteners, simplifies the assembly process, and ensures the stability and reliability of the overall structure.

[0019] 4. The latch guide plate in this invention is directly formed by cutting its outer contour on the clamping plate and bending it along one side of the first latch hole, avoiding the problems of high component wear and low processing efficiency caused by directly welding a latch guide plate onto the clamping plate. Simultaneously, this invention uses a split structure design, fitting the clamping plate and the outer shell together, allowing the outer shell to effectively conceal the processing holes formed after bending the clamping plate. This not only improves the product's appearance integrity but also enhances the structure's sealing and protective performance. This design simplifies the manufacturing process while further improving the product's aesthetics and practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the split-type fireproof lock panel described in Example 1.

[0021] Figure 2 This is a schematic diagram of the outer shell described in Example 1.

[0022] Figure 3 This is a schematic diagram of the clip structure described in Example 1.

[0023] Figure 4 This is a schematic diagram of the split-type fireproof lock panel described in Example 2.

[0024] Figure 5 This is a schematic diagram of the outer shell described in Example 2.

[0025] Figure 6 This is a schematic diagram of the clip structure described in Example 2.

[0026] Figure 7 This is a schematic diagram of the split-type fireproof lock panel described in Example 3.

[0027] Figure 8 This is a schematic diagram of the outer shell described in Example 3.

[0028] Figure 9 This is a schematic diagram of the clip structure described in Example 3.

[0029] The attached figures are labeled as follows:

[0030] 1-Outer shell; 2-Clamping piece; 3-First locking tongue hole; 4-First fixing hole; 5-Second locking tongue hole; 6-Second fixing hole; 7-Locking tongue guide piece; 8-Edge binding. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0032] Example 1

[0033] The split-type fireproof lock panel described in this embodiment includes a shell 1 and a clip 2. Figure 1 This is a schematic diagram of the structure of the split-type fireproof lock panel described in this embodiment.

[0034] The edges of the outer shell 1 are bent to form edging 8, and adjacent edging 8 are not connected to each other. The outer shell 1 is made of 201 stainless steel, and its thickness is 0.1-0.5mm. The outer shell 1 has two first latch holes 3 that are adapted to the shape of the fireproof lock latch. In this embodiment, the two first latch holes 3 are rectangular and "I" shaped, respectively. Circular first fixing holes 4 are provided on the upper and lower sides of the outer shell 1 of the first latch holes 3, and the outer shell 1 around the first fixing holes 4 is recessed towards the clamping piece 2. Figure 2 This is a schematic diagram of the outer casing described in this embodiment.

[0035] The clip 2 is attached to the outer shell 1 surrounded by the edging 8, and the outer contour of the clip 2 is adapted to the outer shell 1. The clip 2 is fixedly connected to the outer shell 1 by bending the edging 8 towards one side of the clip 2. The thickness of the clip 2 is 0.5-2mm. The clip 2 is provided with a second latch hole 5 and a second fixing hole 6 corresponding to the first latch hole 3 and the first fixing hole 4, respectively. The shape of the second fixing hole 6 is a plum blossom shape adapted to the first fixing hole 4. The diameter of the second fixing hole 6 is not smaller than that of the first fixing hole 4, and the clip 2 around the second fixing hole 6 is recessed towards the side away from the outer shell 1. A latch guide plate 7 is vertically installed on the clip 2 on the upper and lower sides of the second latch hole 5. The latch guide plate 7 is formed by cutting its outer contour on the clip 2 and bending it along one side of the first latch hole 3. The distance from the first latch hole 3 to its left and right edging 8, and the distance from the second latch hole 5 to its left and right edging 8, are both greater than the height of the edging 8. Figure 3 This is a schematic diagram of the clip structure described in this embodiment.

[0036] Example 2

[0037] The split-type fireproof lock panel described in this embodiment includes a shell 1 and a clip 2. Figure 4 This is a schematic diagram of the structure of the split-type fireproof lock panel described in this embodiment.

[0038] The edges of the outer shell 1 are bent to form edging 8, and adjacent edging 8 are not connected to each other. The outer shell 1 is made of 201 stainless steel, and its thickness is 0.1-0.5mm. A first latch hole 3 adapted to the shape of the fireproof lock latch is provided on the outer shell 1. In this embodiment, the first latch hole 3 is rectangular. Circular first fixing holes 4 are provided on the upper and lower sides of the outer shell 1 of the first latch hole 3, and the outer shell 1 around the first fixing holes 4 is recessed towards the clamping piece 2. Figure 5 This is a schematic diagram of the outer casing described in this embodiment.

[0039] The clip 2 is attached to the outer shell 1 surrounded by the edging 8, and the outer contour of the clip 2 is adapted to the outer shell 1. The clip 2 is fixedly connected to the outer shell 1 by bending the edging 8 towards one side of the clip 2. The thickness of the clip 2 is 0.5-2mm. The clip 2 is provided with a second latch hole 5 and a second fixing hole 6 corresponding to the first latch hole 3 and the first fixing hole 4, respectively. The shape of the second fixing hole 6 is a plum blossom shape adapted to the first fixing hole 4. The diameter of the second fixing hole 6 is not smaller than that of the first fixing hole 4, and the clip 2 around the second fixing hole 6 is recessed towards the side away from the outer shell 1. A latch guide plate 7 is vertically installed on the clip 2 on the upper and lower sides of the second latch hole 5. The latch guide plate 7 is formed by cutting its outer contour on the clip 2 and bending it along one side of the first latch hole 3. The distance from the first latch hole 3 to its left and right edging 8, and the distance from the second latch hole 5 to its left and right edging 8, are both greater than the height of the edging 8. Figure 6 This is a schematic diagram of the clip structure described in this embodiment.

[0040] Example 3

[0041] The split-type fireproof lock panel described in this embodiment includes a shell 1 and a clip 2. Figure 7 This is a schematic diagram of the structure of the split-type fireproof lock panel described in this embodiment.

[0042] The edges of the outer shell 1 are bent to form edging 8, and adjacent edging 8 are not connected to each other. The outer shell 1 is made of 201 stainless steel, and its thickness is 0.1-0.5mm. A first latch hole 3 is provided on the outer shell 1, which is adapted to the shape of the fireproof lock latch. In this embodiment, the shape of the first latch hole 3 is "I". Circular first fixing holes 4 are provided on the upper and lower sides of the outer shell 1 of the first latch hole 3, and the outer shell 1 around the first fixing holes 4 is recessed towards the clamping piece 2. Figure 8 This is a schematic diagram of the outer casing described in this embodiment.

[0043] The clip 2 is attached to the outer shell 1 surrounded by the edging 8, and the outer contour of the clip 2 is adapted to the outer shell 1. The clip 2 is fixedly connected to the outer shell 1 by bending the edging 8 towards one side of the clip 2. The thickness of the clip 2 is 0.5-2mm. The clip 2 is provided with a second latch hole 5 and a second fixing hole 6 corresponding to the first latch hole 3 and the first fixing hole 4, respectively. The shape of the second fixing hole 6 is a plum blossom shape adapted to the first fixing hole 4. The diameter of the second fixing hole 6 is not smaller than that of the first fixing hole 4, and the clip 2 around the second fixing hole 6 is recessed towards the side away from the outer shell 1. A latch guide plate 7 is vertically installed on the clip 2 on the upper and lower sides of the second latch hole 5. The latch guide plate 7 is formed by cutting its outer contour on the clip 2 and bending it along one side of the first latch hole 3. The distance from the first latch hole 3 to its left and right edging 8, and the distance from the second latch hole 5 to its left and right edging 8, are both greater than the height of the edging 8. Figure 9 This is a schematic diagram of the clip structure described in this embodiment.

[0044] The embodiments described above are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention shall fall within the protection scope of the present invention.

Claims

1. A split-type fireproof lock panel, characterized in that, The device includes an outer shell (1) and a clip (2); the edge of the outer shell (1) is bent to form a edging (8), and adjacent edgings (8) are not connected to each other; the outer shell (1) is provided with a first latch hole (3) that matches the shape of the fireproof lock latch, and the outer shell (1) on the upper and lower sides of the first latch hole (3) is provided with a first fixing hole (4); the clip (2) is attached to the outer shell (1) surrounded by the edging (8), and the outer contour of the clip (2) matches the outer shell (1). The clip (2) is fixedly connected to the outer shell (1) by bending the edging (8) to one side of the clip (2); the clip (2) is provided with a second latch hole (5) and a second fixing hole (6) that correspond to the first latch hole (3) and the first fixing hole (4), and a latch guide plate (7) is vertically installed on the clip (2) on the upper and lower sides of the second latch hole (5).

2. The split-type fireproof lock panel according to claim 1, characterized in that, The number of the first and second locking tongue holes (5) is not less than one, and the shape is one or more of the following: rectangular, circular, and "I" shaped.

3. The split-type fireproof lock panel according to claim 1, characterized in that, The latch guide plate (7) is formed by cutting out its outer contour on the clip plate (2) and bending it along one side of the first latch hole (3).

4. The split-type fireproof lock panel according to claim 1, characterized in that, The first fixing hole (4) is circular in shape, and the second fixing hole (6) is circular or plum blossom-shaped to match the first fixing hole (4), and the diameter of the second fixing hole (6) is not smaller than that of the first fixing hole (4).

5. The split-type fireproof lock panel according to claim 1, characterized in that, The outer shell (1) is made of stainless steel.

6. The split-type fireproof lock panel according to claim 1, characterized in that, The outer shell (1) around the first fixing hole (4) is recessed toward the side of the clip (2), and the clip (2) around the second fixing hole (6) is recessed toward the side away from the outer shell (1).

7. The split-type fireproof lock panel according to claim 1, characterized in that, The distance from the first latch hole (3) to its left and right side edges (8) and the distance from the second latch hole (5) to its left and right side edges (8) are both greater than the height of the edges (8).

8. The split-type fireproof lock panel according to claim 1, characterized in that, The thickness of the clip (2) is 0.5-2 mm, and the thickness of the outer shell (1) is 0.1-0.5 mm.

9. A fireproof lock, characterized in that, The split-type fireproof lock panel includes any one of claims 1 to 8.